The place of the will in its influence upon health and vitality has long been recognized, not only by psychologists and those who pay special attention to problems of mental healing, but also, as a rule, by physicians and even by the general public. It is, for instance, a well-established practice, when two older folk, near relatives, are ill at the same time, or even when two younger persons are injured together and one of them dies, or perhaps has a serious turn for the worse, carefully to keep all knowledge of it from the other one. The reason is a very definite conviction that in the revulsion of feeling caused by learning of the fatality, or as {2} a result of the solicitude consequent upon hearing that there has been a turn for the worse, the other patient's chances for recovery would probably be seriously impaired. The will to get better, even to live on, is weakened, with grave consequences. This is no mere popular impression due to an exaggeration of sympathetic feeling for the patient. It has been noted over and over again, so often that it evidently represents some rule of life, that whenever by inadvertence the serious condition or death of the other was made known, there was an immediate unfavorable development in the case which sometimes ended fatally, though all had been going well up to that time. This was due not merely to the shock, but largely to the "giving up", as it is called, which left the surviving patient without that stimulus from the will to get well which means so much.